Wax-thread sewing-machine



(No. Model) 0. E. BROWN. WAX THREAD SEWING MAGHINE.

No. 498,505. Patented May 30, 1893.

Witnesses- I K/ L MW 5 :1 01

UNrrED STATES;

ATENT OFFIQE.

OTIS E. BROWN, OF BRQOKTON, MASSACHUSETTS.

WAX-TH READ SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 498,505, dated May 30,1893.

Application filed December 31, 1,?891. Serial No. 416,701. (No model.)

To all whom it may concern:

Be it known that'I, OTIs E. BROWN, a citi-I zen of the United States ofAmerica, and a resident of the city of Brockton, in the county ofPlymouth and State of Massachusetts, have invented certain new anduseful ImproveinentsinWax-ThreadSewing-Machines, of which the followingis a full, clear, and exact description.

The object of this invention is to provide improved appliances withrelation to waxthread sewing machines of which the Goodyear rapidstitcher is a well known type, for the purpose of heating the waxthread, and most especially the terminal portion thereof which iscarried to the needle.

To,this end the invention consists, in the combination of a steamjacketed trough, an oscillating take-up arm moving in the arc of acircle in the trough, mechanism connected with and oscillating thetake-up arm, a stationary, longitudinally chambered shaft located abovethe trough and on which the take-up arm oscillates, means forintroducing steam into the said shaft, a steam pipe connection betweenthe shaft and the jacketed trough, and a steam conduit leading from thelatter.

In the accompanying drawings the present improved appliances are showntogether with so much of the sewing machine as necessary to indicatetheir availability.

Figure 1 is a side View of a part of the post, the take-up mechanism andthe shuttle-case of a Goodyear rapid stitcher and of the steamcirculating conduits. Fig. 2 is an elevation of the principal partsshown in Fig. 1, taken at right angles thereto. Fig. 3 is a sectional.View hereinafter referred to. I

In the drawings Fig. 1, A represents the post of the well known Goodyearwaxthread rapid stitcher.

B is the shuttle-case.

C is the take-up arm having a roll at its extremity, and oscillatingforward and backward into and out of the curve sided trough D, on acenter stationary shaft 0. and by means of the usual, cam-operated leverand linkconnections, parts thereof being indicated at b. The stationaryshaft or is longitudinally chambered.

61 represents a steam pipe of small diameter which is understood asleading from any suitable steam supply, and has a portion thereofindicated at d formed into a loop having the side by side sectionsthereof curved to conform to the periphery of the shuttlecase B; and thesaid steam-pipe, of itself, or another section coupled thereto isextended from the said loop portion to a connection at a with one end ofthe chambered shaft for steam ingress thereinto. The said chamberedshaft at its end opposite to that of its steamconnection e has coupledthereto a steam egresspipe, indicated at f which thence extends to thejacket-chamber, g of the said trough. This trough has thejacket chamberinclosing its front and both ends the different chamber portions beingall in communication for free circulation of steam therein;

and h represents the steam outlet-pipe extending from the said jacketchamber to waste or otherwise.

The loop formed section C6, of the steam receptacle-conduit which isdisposed in an arc form and overlies the shuttle-carriers, is, as shownin Figs. 1 and 2, closedin by the'shield or hood, 2', which hasfoot-lugs by which it is secured to the rim of the shuttle-case.

From the foregoing description and the illustrations referred to, itwill be. apparent, that, with a suitable steam supply furnished foringress to the pipe-section, d, the steam circulates adjacent theshuttle-case and passes thence to and through the shaft on which thetake-up arm for the needle thread is mounted to swing, and thence to,and through, and awayfrom the jacket-chamber of the trough.Consequently, as is manifest, the wax thread carried on the shuttle andits terminal portion passing out from the shuttle-case and the Waxthread of the needle by reason of its engagement with the heated take-uparm and roll and. also of the movement of said take-up arm and roll'inand out of the jacketed trough, will be heated and so maintained heatedto thedegree required for the eifective working of the threads in makingstitches as well known in wax-thread sewing machines of the type beforementioned.

In Fig. 3, there is shown as applied relative to the shuttle-case, inlieu of a loop section of the steam conduit, an are formed casing,inclosing the chamber (1 to which the steam inlet pipe, (1, therefor iscoupled for communication at one end and to which the steam egress piped therefor, has the connection at the other end. This latter form of theradiating heater for the shuttle-case performs the same function as theloop but the arrangement shown in Fig. 3 may be performed where agreater steam volume is desired for a correspondingly increased degreeof heat adjacent the shuttle-case.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,

The combination of a steam jacketed trough

